No 4k display works through D3100 on Dell XPS15 Windows 10
 

I am able to attach my Vizio 4K TV directly to the XPS15 laptop and it runs with 4k resolution, however, I get no display when connecting to the TV from the D3100. It claims there is a VGA monitor attached, but none of the resolutions (all non-4k) produce any output.

I am attached to the D3100 via the USB 3.0 cable that came with the D3100.
I am running Windows 10.
I have installed and reinstalled latest drivers, including running the clean-up tool.

I also tried with the DisplayPort to another monitor, and got the same issue, so I don't think it's specific to the Vizio. I basically have no display support through the dock.

Anyone able to help?

Hello Bill,
Could you create a tech support ticket with your logs to be investigated?
Here is how: How can I report Windows installation issues to DisplayLink?
Thanks,
Alban